Obviously, during the war there was a shortage of many things, either due to the German U-boat blockade, or because these things were previously imported from countries which had been occupied. I've often wondered about the egg shortage though. Why was there suddenly only enough for one egg per man per week? Did all the chickens stop laying? Were all the chickens slaugtered as part of a premature 'scorched-earth' policy? Or did we really import so many eggs before the war? Alternatively, is there something in eggs that can be processed into something more warlike, and as such all the eggs were being used for this purpose rather than being eaten?